pioneer a09 clone zero feedback output buffer

[kevin gilmore]

Saw some talk about this and decided to make a new version. 

use either the tube unbal/bal to bal board, or the solid state version

result is about 125 watts rms into 8 ohms at thd of .005% 

will definitely drive 4 ohms with suitably large power supplies.

transistors are standard pinout, so pick your favorite output transistors.

the to220 transistors are mje15034/mje15035

perfect for so many things, including esl boost transformers.

pioneera09.pdf